I must capsize you must capsize she must capsize we must capsize you must capsize they must capsize
V-ing form
I must be capsizing you must be capsizing she must be capsizing we must be capsizing you must be capsizing they must be capsizing
Perfect
I must have capsized you must have capsized she must have capsized we must have capsized you must have capsized they must have capsized
V-ing perfect
I must have been capsizing you must have been capsizing she must have been capsizing we must have been capsizing you must have been capsizing they must have been capsizing
Negation
Simple form
I mustn't capsize you mustn't capsize she mustn't capsize we mustn't capsize you mustn't capsize they mustn't capsize
V-ing form
I mustn't be capsizing you mustn't be capsizing she mustn't be capsizing we mustn't be capsizing you mustn't be capsizing they mustn't be capsizing
Perfect
I mustn't have capsized you mustn't have capsized she mustn't have capsized we mustn't have capsized you mustn't have capsized they mustn't have capsized
V-ing perfect
I mustn't have been capsizing you mustn't have been capsizing she mustn't have been capsizing we mustn't have been capsizing you mustn't have been capsizing they mustn't have been capsizing
Interrogative form
Simple form
must I capsize? must you capsize? must she capsize? must we capsize? must you capsize? must they capsize?
V-ing form
must I be capsizing? must you be capsizing? must she be capsizing? must we be capsizing? must you be capsizing? must they be capsizing?
Perfect
must I have capsized? must you have capsized? must she have capsized? must we have capsized? must you have capsized? must they have capsized?
V-ing perfect
must I have been capsizing? must you have been capsizing? must she have been capsizing? must we have been capsizing? must you have been capsizing? must they have been capsizing?
Interro-negative form
Simple form
mustn't I capsize? mustn't you capsize? mustn't she capsize? mustn't we capsize? mustn't you capsize? mustn't they capsize?
V-ing form
mustn't I be capsizing? mustn't you be capsizing? mustn't she be capsizing? mustn't we be capsizing? mustn't you be capsizing? mustn't they be capsizing?
Perfect
mustn't I have capsized? mustn't you have capsized? mustn't she have capsized? mustn't we have capsized? mustn't you have capsized? mustn't they have capsized?
V-ing perfect
mustn't I have been capsizing? mustn't you have been capsizing? mustn't she have been capsizing? mustn't we have been capsizing? mustn't you have been capsizing? mustn't they have been capsizing?